| Current: | MST — Mountain Standard Time |
|---|---|
| Next Change: | MDT — Mountain Daylight Time |
| Current Offset: | UTC/GMT -7 hours |
| Difference: | 2 hours behind Columbus |
2026 Time Zones - Ontario
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
The graph above illustrates clock changes in Ontario during 2026.
Time Changes in Ontario Over the Years
Daylight Saving Time (DST) changes do not necessarily occur on the same date every year.
| Year | Date & Time | Abbreviation | Time Change | Offset After |
|---|---|---|---|---|
| 2025 | Sun, Mar 9 at 2:00 am | MST → MDT | +1 hour (DST start) | UTC-6h |
| Sun, Nov 2 at 2:00 am | MDT → MST | -1 hour (DST end) | UTC-7h | |
| 2026 | Sun, Mar 8 at 2:00 am | MST → MDT | +1 hour (DST start) | UTC-6h |
| Sun, Nov 1 at 2:00 am | MDT → MST | -1 hour (DST end) | UTC-7h | |
| 2027 | Sun, Mar 14 at 2:00 am | MST → MDT | +1 hour (DST start) | UTC-6h |
| Sun, Nov 7 at 2:00 am | MDT → MST | -1 hour (DST end) | UTC-7h | |
| 2028 | Sun, Mar 12 at 2:00 am | MST → MDT | +1 hour (DST start) | UTC-6h |
| Sun, Nov 5 at 2:00 am | MDT → MST | -1 hour (DST end) | UTC-7h | |
| 2029 | Sun, Mar 11 at 2:00 am | MST → MDT | +1 hour (DST start) | UTC-6h |
| Sun, Nov 4 at 2:00 am | MDT → MST | -1 hour (DST end) | UTC-7h | |
| * All times are local Ontario time. Next time change is highlighted. | ||||
Data for the years before 1970 is not available for Ontario, however, we have earlier time zone history for Boise available.
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Ontario
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9:3617am
Wednesday, January 21, 2026